1 1000 A 4 ..,C*. IIII 3 ..ac* III 8 ,,.,ccAA-3acccA IIIIIIII 1 2000 c 4 ..C+4IIIIa< IIII 3 ACt..* III 8 .a.a.C.C* IIIIIIII 2 1000 G 4 ,,.,,.#.-3Acc>C*. IIII 3 .,,* III 8 .,,.,,* IIIIIIII